Gotta some down on the side of window-seat-occupant-controls-the shade.

You get an aisle seat, you win extra leg and elbow room (unless the cart is wheeling by) and easy access to the lav or to stretch your legs. But the window customer just gets one advantage: the sight-seeing opportunity. Not fair to deny 'em that.
(Of course, if you're flying coach on a 2-5-2 and catch that center-middle seat, you're just outta luck)

As for the movie ... I NEVER watch the awful things. And I'm not responsible for anyone who chooses to. If I'm on the window, I figure the view is part of what I get for my ticket price ... the movie is some side deal other pax work with the airline. (maybe future planes can offer movie/no-movie seating)?

If you wanna sleep and the sun bothers ya, why not take along sunglasses or a nighttime eye mask?